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英语听力,探索发现,科学新发The mission had been a stunning1 success: Kittinger skydiving record stands to this day. He takes his first deep breath of air with a new found appreciation2 for our atmosphere. It was relief to be back on the planet Earth that we love so much, a planet that has an atmosphere that we can live daily. Kittinger forged a dizzying path through the atmosphere.
So as far as what we know now, Earth’s atmosphere is completely unique. In the past century, telescope and space probes have uncovered the extreme atmospheres of our neighbouring planets. A journey across our solar system reveals exactly how unusual Earth is. Clouds of near frozen gas flow over the icy surfaces of Uranus4 and Neptune5, while the sun has blasted away the atmospheres of Mars and Mercury. To me it seems as though Mercury doesn’t have an atmosphere at all. In fact that if you were on the surface of Mercury, it would look to you as if you were out in outer space. 现,我们的大气层
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